Home / 521,112.70-781,669.05-403,014.70

Finding the Fourth Proportional to 521,112.70, 781,669.05 and 403,014.70

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Solution

The fourth proportional to 521,112.70, 781,669.05 and 403,014.70 is: 604,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,112.70 : 781,669.05 = 403,014.70 : x
  2. Step 2: Convert to fraction form
    521,112.70/781,669.05 = 403,014.70/x
  3. Step 3: Cross multiply
    521,112.70x = 781,669.05 × 403,014.70
  4. Step 4: Simplify right side
    521,112.70x = 315,024,117,685.04
  5. Step 5: Solve for x
    x = 315,024,117,685.04/521,112.70
  6. Step 6: Final answer
    x = 604,522.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.